Mobile spreader



Dec. 27, 1932. F. D. coPPocK 1,892,566

MOBILE SPREADER Filed Dec. lO, 1951 2 Sheets-Sheet l @Tg-M a 7 a@ z @533 @-2.

36 31 6 HIJ, 37 J F. D. COPPOCK MOBILE SPREADER Dec. 27, 1932.

2 sheets-snee# 2 Filed DSO. 10, 1931 Patented Dec. 27, 1932 i i UNITEDSTATES P,a'iE'1\i'l'r orifice Application led December 10, 1931. ASerialNo.7580,1v41.

My invention relates to a trailer hopper ingly thin. The sandniay be aslarge in topV feed or spreaderliereinaftertermedaspreadsizeas fe, yetv aspread this thick on the er designed primarily for the spreading of roadwould beunnecessaryostly and less eff: sand, stone, gravel, cinders,slag and other i'icientthanasmaller amount.V` Vithawheel materials onhighways, either for skid pieroll ratio of 4c: 1 we can have" a gateopening venton, for surface treatment or in the conthat will allow fgmaterial to pass, yet the struction of macadam and other types of spreadon they-road has an average thickness road, but itis to be understoodthat a .spreads of only 3/647.` Y I l er, in accordance with myinvention may be. For macadam and other similar roads 10 employed in anyconnection forwhich it is thick layers of material are' required and 60found applicable. these .can be vefficiently handled by a-wider Theessential objects of my invention are open gate up to a certainthickness of to provide a spreader capable when active to spread,-and.above that thickness by the civ attain a regular and fine thickness ofspread use ofl a different wheel ratio. regardless of the speed of thevehicle by In hilly country under rainy oricy condi- 65' which it isdrawn; enabling much liner oi' tions the truck with its load of sand'can not thinner spreadsy to be made than that ob* gain suiicientwheel'traction to climb-I the tained by a spreadereeinploying a.,g1avlty hills. It therefore becomes necessary to back o type l gate;providing for proportionately up hill, thus spreading sand on the roadin o large sized material being SpreadtO a lllIl advance of ther-truckwheels.A The'spreader 70 average depth; permitting spreading O the isreadily adaptable to an operation-of this material on backing; and toattain these ends Sert. If the backing lmedStanee is only L in a strong,durable, compact7 thoroughly few hundred feet' sufficiently satisfactoryet'iicient,coiiveniently adjusted, readily asseni- Spreading can beYdelle with backwardV rete l bled and comparatively inexpensivestructure. If however as in macadam read eonstrujo. The Spreader lS Ofthe IIIObllQ type and lllit becomegnecegsary for a, 10110* distance orcludes a pair of traction wheels lixed to'a 10mg period of time teoperati; the fmler' rOtal'ble Mle, i111 adlustable Spreading 1 '011backing up, itis thenprovided that the roll bodily carried by the latterand coacting can bey removed from its ferward position With the Outlet fthe SPYe-dbidy, and C011- and reattached in its rearward position Introllable selectable gates for and common to this position and usingthebackward I 'ate the outlet and coactmg Wlth the T011 t0 PTO* thespreader operates iii the same mannerg and vide for the discharge of thematerial on the with the Same degree 0f Control as in th fi t travel otpg: spreader. fTlile spreading roll positionV i f ,e rs is exten ecorwardly o t e outlet or forf y ward spreading and rearwardly of theoutlet mth isi? nesary tto if@ -e backldrslgup for backward spreading.The ratio of -did 1 1 en Svrace-riga mg -arrOaunl anieters between thewheels and the roll deter- .er1 WAC; Comdtlons 1t is EmetlcallyImposniines the thickness of the material spread. 9b.@ for the truck to910mm tmcuon unless This is not merely theoretically true, it is also1t. 1s backmg up' 1 Y 90 approximately true in practice, for instance Tothe, abovendf essentlally afd Others if the ratio is 4:1 and the gatelip is 1/2. which may he'emafbe' appear my ml'nt'ol 0E the rouen i. e.the Outlet being 1A, Open, consists of such parts and such combinationthen the Sp1-eed is i/4 of this or 1/8 of parts as fall within therscopeof the in- 4 In skid prevention the spreading must "@HIOII 3S 01331165.-l p 95 usually be done in conditions of heavy traf- In the drawings:

fic, where the vehicle may be forced to speed Figure 1 is a sideelevation of a spreader up or slow down, or even stop. Under such inaccordance with my. invention. 1 f

conditions the thickness of spread automati- Figure 2 is a horizontalsectional view cally remains the same. It must be exceedthereof.

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Figure 3 isa front elevation.

Figure 4 is a. fragmentary sectional view on line 4 4 Figure 4.

The spreader includes a. body part of hopper like form to carry thematerial and consisting of a pair of side walls 1, 2, each having atapered part 3 and a rectangular part 4, the latter being of less heightthan the former and providing the upper portion of the side wall.Interposed between the walls 1, 2 as well as being secured thereto is acombined front wall and forward bottom section forming element 5, andthe latter includes a perpendicular upper portion 6 forming the frontwall and inwardly extending, depending, rearwardly inclined'lowerportion 7 of greater' height than portion 6 and providing the frontSection ofthe bottom ofr` the body part. The4 portion 7 has its loweredge arranged above the bottomfof the sidewalls.

Arranged between, as well as beingsecuredr to the walls 1, 2, is acombined back wall and rear bottom section forming element 8, and thelatter includes a perpendicular upper portion 9 forming thefront walland an inwardly extending, depending forwardly inclined lower portion 10of greater height than portion 9 and providing the rear section of thebottom of the body part. The portion 10 has its lower edge arrangedabove the bot,- tom of the side walls. The lower Vedges'of portions 7and 10 are arranged in parallel spaced alignment, and thespacezbetweensuch edges forms an outlet 11 for said Abody part. The topof the body partis reinforced at its front, back and' sides by anglebars12.

Connected to the outer face of each side wall, at the bottomV of thelatteris a rearwardly extending angle bar formed of a vertical and anoutwardly directed horizontal flange, the` latter being extended fromthe bottoni of the former. The angle bars are indicated at 13, 14 andare oppositely disposed with respect to each other. The verticalandhorizontal flanges'ofeach bar are indicated at 15, 16 respectively.The bars 13, 14 extend rearwardly theA desired distance from the bodypai-tand provide supports for a pair of handle members 17, eachconsisting of a vertical. part 18 secured at its lower end to the rearend of an angle bar and terminating at its upper end into a forwardly directed part 19 which is secured against the outer face of an angle bar12 at the top of a side wall. The angle bars13, 14V have mounted thereonand secured to the vertical flanges thereof a plank 20 providing aplatform. The parts 18 of the handle members are secured to thehorizontal flanges of the bars 13,14.

Secured to the lower face of and depending from the horizontal flange ofeach bar 13,14 is a pair of spaced bearing elements 21, 22. The formeris positioned between the vertical median and back of the body part andthe latter is arranged between the vertical median and front of the bodypart. The bearing elements 21, 22 on bar 13 align with those on bar 14.The outlet 11 is arranged at the vertical median of the body part andabove the space formed between each pair of bearing elements. n

The spreader includes a pair of supporting wheels 23, 24 which are fixedto an axle 25 bodilyrotating with the wheels. l/Vhen the spreader isdischarging forwardly the axle 25 is journaled in the aligning bearingele ments'22 and when discharging rearwardly orbaclrwardly the axle 25is `iournaled in the aligning bearing elements 21. The axle 25 isremovably attached to thatpair of bearing elements in which it isjournaled,

Fixed to the axle 25 is a spreader roller 26 of materially lessdiameterthan that of the wheels 23, 24. Preferablyv the ratio of'diam- Veters of the wheels and roll is 4:1, that is to say the diameter of eachwheel being four times greater than that of the roll, and the latter isof a length to extend from the inner face of side-wall 1 Vto the innerface of side wall 2` The roll 26 is positioned between the sidewalls andbelow and spaced from the sections of the bottom ofthe body part. l Onfront discharge, roll 25 is arranged below bottom section 7 and has itsaxis arranged forwardly of outlet 11. On back or rear discharge, roll 26is arranged below 'bottom sectionlO'and has its axis arranged rearwardlyof outlet: 11. On front or forward discharge the major portion oft-hecircumference-v of the roll 26 is 'arranged forwardly of outlet 11. Onback or rear discharge the major .portion of the circumferenceof'thefroll is arranged rearwardly of outlet 11.

The discharge through outlet 11 is controlled by a front and a rearadjustable gate 27, 28l respectively, the former being slidably mountedagainst the outer face ofbottom sec'- tion 7 and the latter isslidably-mounted against the outer face of bottom section 10. Combinedgate guide and retainersVv 29 are secured to the inner faces of the sidewalls A1, 2 and opposes in spaced relation the bottom sections 7, 10.The gates are disposed at opposite inclinations, are adjustable towardsand from each other, and extend towards the vertical median. of the bodypart. The gates are' adjustable to vary the discharge through outlet 11,and when in such position depend below the side walls of the outlet. Onforward discharge gate 27 controls the discharge of the material andgate 28 provides a stop to prevent the material from passing rearwardlyfrom the body part. Onv rear or back discharge gate 2,8 controls thedischarge of the material and gate 27 provides a stop to prevent thematerial passing forwardly from the body part. @n front or forward ofroll 26 forwardly of the vertical median of the body part and the bottomedge of gate 27 is spaced from the peripheryof roll 26 in advance-of thepoint of the latter upon which seats gate 2S. The gate 27, when thespreader is discharging forwardly is adjusted to the desired extent todepend from the bottom section 7 to form in connection with roll 26 amaterial discharge passage 30. On back or rear discharge the gate 27seats on the periphery of the roll 26 rearwardly ofthe vertical medianof the body part and the bottom edge of gate 28 is spaced from theperiphery of roll 26 rearwardly of the vertical median of the body partand the bottom edge of gate 28'. is spaced from the periphery of roll 26rearwardly of the point of the latter upon which seats gate 27. The gate28, when the spreader is discharging rearwardly is adj usted to thedesired extent to depend from the bottom section 10 to form inconnection with roll 26 a material discharge passage.

The gatesare adjusted from the rear of the body part and for suchpurpose-the gate 27 has attached'to each end an inclined pull bar 3lpivotally connected at its upper end as at 32 to the outer end of theangularlydisposed forward portion 33 of a rearwardly extending lever arm34, Vthe latter being mounted to swing upon a pivot extended laterallyfrom a support 36 securedto a front angle bar 12; rlhe arms 34 extendrearward- 1y beyond the rear wall 9, over the top of the body part .andprovide means for elevating and lowering gate 27. Attached to the gate28 for the purpose of elevating and lowering it is an upstanding handlemember 37.

Attached to the bottom section 7 is a forwardly' directed tongue orhitching bar for connecting the latter to a traction means.

lVhat I claim is l l. A. spreader including a hopper like body part forcarrying the material to be spread and having an outlet in its bottom,rotatable supporting means for said body part, said 5 means including aspreader roll bodily rotating therewith, said roll arranged below andhaving the maj or portion of its circumference located adjacent saidoutlet, and adjustable means carried by said body part for extensionbelow said outlet and coacting with said roll to provide a passage ofselected area positioned adjacent the vertical median of said body partfor discharging the material in the direction of travel of the spreader,said rotatable supporting means including a pair of wheels, the ratio ofthe d ameters between 'the wheels and roll beingsuch for determining thethickness of the material spread, said adjustable means including a pairof gates slidf ably connected to the front and rear of the bottom ofsaid body part and for depending below said outlet, said supportingmeans including a rotatable axle carrying said wheels and roll, meansfor selectively positioning said axle forwardly and rearwardly of the king with said axle, said'roll being permanently arranged out of contactwith vthe traction surface upon which said means travels, said ro-llbeing arranged below and having the major Vportion ofits circumferencelocated adjacent said side of said outlet, adjustable means carried byVsaid body part for extension below said outlet and Vcoacting with saidroll to providea passage of selected area Vpositioned adjacent thevertical median of said body part for Ldischarging'the material in thedirection of travel of the spreader and a stop to arrest ,j discharge ofthe material in a direction opposite to that of the direction of travelof the spreader, and means for operaing said adjustable means from therear of said'body part.

Y A mobile spreader including a hopper' like body part for carrying thematerial to be `spread and having an outlet in: its bottom, a

rotatable supporting means for said body part and including a spreaderrollrigidlysecured thereto and bodily rotating therewith, said rollarranged below and having the major portion of itscircumference extendedlaterally with respect to said outlet, adjustable elements carried bythe front land rear of the body part for extension below said `outthebottom of one side of said outlet for dis-A charge passage of selectedareal positioned at the bottom ofione sideA of said outlet fordischarging the material'i'n the direction Vof travel of thespreader,a'platform arranged adjacent said body part, a combined supporting-andsuspending structure for the platform securedto and extended from onevside of said body part, and means arranged on that side ofthe body partfrom which said structure extends for operating said adjustableelements.

4. AIn a mobile spreader,v a container for the material to be spread andhaving an outlet in its bottom rearwardly lextending bars se- I cured tothe sides of the container, a platform supported by said bars, rails'secured to said bars and to the container, a rotatablesupportingstructure for said container and including a spreader rollpositioned below said outlet, said roll bodily rotatingwith saidstructure, bearings for said structure secured i to said bars,adjustable elements secured at the front and rear of the container andcoacting with said roll for controlling discharge of the material fromthe container, and means operated'at the rear of the container and byLili an occupant on the said elements.

5. In a mobile spreader, a container for the material to be spread andhaving an outlet in its bottom, a rota-table supporting structureincluding a. spreader roll positioned below said outlet, means forselectively positioning the axis of said roll forwardly and rearwardlyof said outlet, and adjustable elements carried by the front and rear ofthe container and coacting with the i'oll at a point adjacent the axisthereof for controlling the discharge of the material from said outlet.

6. A mobile spreader comprising, a hopper like body part portion forcarrying the material to be spread and havinga centrally disposed outletin its bottom, bars secured to the bottoms of the sides of the body partbelow said outlet, afrotatable axle arranged below said bars, a spreaderroll fixed at its-axis to and bodily rotating with said axle, said rollhaving its ends opposing the inner faces of the sides of said body partbelowvsaid outlet, said roll being arranged below and having the majorportion of its circuinference located adjacent said outlet, adjustablemeans carried by said body part for extension below said outlet andcoacting with said rollto provide a passage of selective area positionedadjacent the vertical median of said body part for discharging thematerial in the direction of travel of the spreader and for arrestingdischarge of material' in a direction opposite to that of the directionof travel of the spreader, means for connecting trie axle to said bars,a pair of traction wheels fixed to said axle, the ratio of diametersbetween the wheels and roll being such for determining the thickness ofthe material spread. j

7. A mobile spreader comprising a hopper like body part portionforcarrying the material to be spread and having a centrally disposedoutlet in its bottom, bars secured to the bottoms of the sides of thebody part, a rotatable axle, a spreader roll fixed at its axis to andbodily rotating with said axle, said roll arranged below and having themajor portion of its circumference located adjacent said outlet,adjustable means carried by said body part for extension below saidoutlet and coasting with'said roll to provide a passage of selectivearea positioned adjacent the vertical median of said body part fordischarging the material in the direction of travel of the spreader andfor arresting discharge of material in a direction opposite to that ofthe direction of travel of the spreader, means for connecting said axleto said bars, a pair of traction wheels fixed to said axle, the ratio ofdiameters between the wheels and roll being such for determining thethickness of the material spread, and means coacting with and secured tosaid bars for selectively positioning said axle forwardly and rearwardlyplatform for adjusting ofthe vertical median of said body part forselectively'controlling discharge forwardly and rearwardly from saidbody part.

8., A mobile spreader comprising, a hopper like body part portion forcarrying the material to be spread and having a centrally disposedoutlet in its bottom, bars secured to theV bottoms of the sides of thebody part below said outlet, a rotatable axle arranged below said bars,a spreader roll fixed at its axis to and bodily rotating with said axle,said roll having its ends opposing the inner faces of the sides of saidbody part below said outlet, said roll being arranged .belowand havingthe maj or portion of its circumference located adjacent said outlet,adjustablemeans carried by said-body part for extension below saidoutlet and coacting with said roll t provide a passage of selective areapositioned adjacent the vertical median of said body part fordischarging the material in the direction of travel of the spreader andfor arresting discharge of materialin a direction opposite -to that ofthe direction of travel of the spreader, means `for connecting the'axleto said bars, a pair of traction wheelsfixed to said axle andpermanently maintained by said wheels out of contact with the tractionsurface upon which the wheels travel, the ratio ofdiameters between thevwheels and roll being such for determining the thickness of the materialspread, a platform carried by said bars rearwardly of said'bodypart,'and means for controlling said adjustable means from said bodypart.

9. A mobile spreader comprising a hopper like body part portionforc'arrying the material to be spread and having a centrally disposedoutlet in its bottom, bars secured to the bottoms of the sides of thebody part, a rotatable axle, a spreader roll fixed at its axis to andbodily rotating with said axle, said roll arranged below and having themajor vportion of its circumference located adjacent said outlet,adjustable means carried by said body part for extension below saidoutlet and coacting with said roll to provide a passage of selectivearea positioned adjacent tlie vertical median of said .body part fordischarging the material in the direction of travel of the spreader andfor. arresting discharge of material in a direction opposite to that ofthe direction of travel of the spreader, means for connecting said axleto said bars, a pair of traction wheels fixed to said axle, the ratioof` diameters between the wheels and roll being such for determining thethickness ofthe material spread, means coacting with and secured to saidbars for selectively positioningsaid` axle forwardly and rearwardly ofthe vertical median vof said body part for selectively controllingdischarge forwardly and rearwardly from said body part, a platformcarried by said bars rearwardly of said body part, and means forcontrolling said adjustable means from said body part.

10. A mobile spreader comprising a container for the material to bespread formed with an outlet in its bottom, a rotatable supportingstructure for said container including a spreader roll positioned belowsaid outlet and a rotatable axle fixed to the axis of said roll andarranged adjacent said outlet, means for selectively connecting saidaxle to spaced points of said container to selectively position the axisof the roll forwardlyT and rearwardly of the outlet, and adjustableelements carried by the front and rear of the container and coactingwith the roll adjacent the axis of the latter for cont-rolling thedischarge of the material from the container.

11. A mobile spreader comprising a container for the material to bespread formed with an outlet in its bottom, a rotatable supportingstructure for said containerl including a spreader roll positioned belowsaid outlet and a rotatable axle fixed to the axis of said roll andarranged adjacent said outlet, means for selectively connecting saidaxle to spaced points of said container to selectively position the axisof the roll forwardly and rearwardly of the outlet, adjustable elementscarried by the front and rear of the container and coacting with theroll adjacent the axis of the latter for controlling the discharge ofthe material from the container, and means operated from the rear of thecontainer for adjusting said elements. In testimony whereof, I affix mysignature hereto.

FRED D. COPPOOK.

